In practice, for fun, we did 2v2 epee one day earlier this year. You essentially had two strips set up next to each other, with 2 sets of boxes and 2 fencers similarly to normal , but when one person got a touch, the opponent on their side was locked out as normal while the other two each had one "beat" (the time for one action) to score before the ref called a halt. So you could have anywhere from 1 to 4 points scored at a time. Of course, if it actually became a sport, I'm sure one could develop electronic systems for whatever rules you wanted, or maybe add more people. It wouldn't really be much more dangerous than 1v1, since I suspect most teams are going to want to stay pretty close to in line.

JudeMorrigan wrote:Actual team fencing is multiple 1v1 bouts until a team gets enough combined touches, right?

Close. You have 9 periods, so that every member of each 3-person team fences every member of the opposing team. Each period ends after 3 minutes, or when the next multiple of five is reached (so the 1st period ends when someone has 5, the second when someone has 10, etc.). So in particular, it's possible, if you're behind, to get many more touches in one round than one could in a regular 3 minute bout.